Wrestling is a highly effective martial art in MMA, as it provides fighters with the ability to control their opponents on the ground and avoid being taken down themselves. Some of the most important wrestling techniques for MMA fighters to learn include:

1. Takedowns: Wrestlers are known for their ability to take down opponents and control them on the ground. Learning various takedown techniques, such as the single-leg takedown, double-leg takedown, and high crotch, can give fighters a significant advantage in MMA.

2. Sprawling: This technique is used to defend against takedowns by sprawling out and stuffing the opponent's takedown attempt. It is a crucial skill for MMA fighters to learn, as it can prevent them from being taken down and put in a vulnerable position.

3. Ground and pound: Once a wrestler has taken their opponent down, they can use their wrestling skills to control them on the ground and deliver effective strikes. Ground and pound techniques, such as the hammer fist and elbow strikes, can be highly effective in MMA.

4. Escapes and reversals: Even the best wrestlers can find themselves in bad positions on the ground. Learning how to escape and reverse these positions, such as the stand-up escape and reversal, can help fighters regain control of the match.

5. Clinch work: The clinch is a position where both fighters are standing and in close proximity to each other. Wrestlers often use clinch work to control their opponents and set up takedowns. Learning clinch techniques, such as the over-under clinch and double underhooks, can give fighters an advantage in this position.

Ultimately, the key to success in MMA wrestling is to be well-rounded and proficient in multiple techniques and strategies. By developing a diverse set of skills, fighters can become more versatile and better able to handle the challenges of the sport.